Quote:
Originally Posted by PeterT
So images are mangled too it would seem?
What are you thinking about for embedded fonts?
|
I think the images would have to be mangled, or in this case replaced with a dummy image of the correct dimensions/format, as when a book has DRM the image files are often (always???) encrypted, even when there are only 2 included images (a useless generic cover and the Publisher's logo
).
Re: embedded fonts I haven't done anything with this so far - mainly because I'm not clear what the best do-able solution would be. More thinking and Calibre code-digging required.
I usually strip all embedded fonts myself so don't have a lot of experience. Is it possible to de-obfuscate an obfuscated font? If not then I'm not sure why they can't be left as-is.
Non-obfuscated fonts are another matter. Some are OK to leave as-is (e.g. Charis), some are not. The safest legal thing to do would be to remove them all from the scrambled version. I'm sure this is do-able because Calibre
Polish and Modify Epub already do it. Although I don't think there's an option to remove some fonts and not others.